Triple

T20913774
Position Surface form Disambiguated ID Type / Status
Subject Chapel-en-le-Frith railway station E515016 entity
Predicate servedBy P82 FINISHED
Object Northern Trains Class 195 units
Northern Trains Class 195 units are modern diesel multiple-unit passenger trains operated by Northern Trains across regional and commuter routes in northern England.
E1458611 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Northern Trains Class 195 units | Statement: [Chapel-en-le-Frith railway station, servedBy, Northern Trains Class 195 units]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Northern Trains Class 195 units
Context triple: [Chapel-en-le-Frith railway station, servedBy, Northern Trains Class 195 units]
  • A. British Rail Class 319 electric multiple units
    The British Rail Class 319 electric multiple units are dual-voltage commuter trains introduced in the late 1980s for cross-London services, capable of operating on both overhead and third-rail electrification systems.
  • B. British Rail Class 317 electric multiple units
    The British Rail Class 317 electric multiple units are a series of suburban electric trains introduced in the early 1980s for commuter services around London, known for their steel-bodied Mark 3–derived design and long service life.
  • C. British Rail Class 321 electric multiple units
    The British Rail Class 321 electric multiple units are a series of suburban and commuter trains introduced in the late 1980s for use on electrified routes in the UK, known for their widespread service in the south-east of England and East Anglia.
  • D. British Rail Class 318 electric multiple units
    The British Rail Class 318 electric multiple units are suburban EMU trains introduced in the mid-1980s for commuter services around Glasgow, Scotland, featuring steel-bodied construction and 25 kV AC overhead electrification.
  • E. British Rail Class 153
    The British Rail Class 153 is a single-car diesel multiple unit train used on regional and rural passenger services across the UK rail network.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Northern Trains Class 195 units
Triple: [Chapel-en-le-Frith railway station, servedBy, Northern Trains Class 195 units]
Generated description
Northern Trains Class 195 units are modern diesel multiple-unit passenger trains operated by Northern Trains across regional and commuter routes in northern England.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Northern Trains Class 195 units
Target entity description: Northern Trains Class 195 units are modern diesel multiple-unit passenger trains operated by Northern Trains across regional and commuter routes in northern England.
  • A. British Rail Class 319 electric multiple units
    The British Rail Class 319 electric multiple units are dual-voltage commuter trains introduced in the late 1980s for cross-London services, capable of operating on both overhead and third-rail electrification systems.
  • B. British Rail Class 317 electric multiple units
    The British Rail Class 317 electric multiple units are a series of suburban electric trains introduced in the early 1980s for commuter services around London, known for their steel-bodied Mark 3–derived design and long service life.
  • C. British Rail Class 321 electric multiple units
    The British Rail Class 321 electric multiple units are a series of suburban and commuter trains introduced in the late 1980s for use on electrified routes in the UK, known for their widespread service in the south-east of England and East Anglia.
  • D. British Rail Class 318 electric multiple units
    The British Rail Class 318 electric multiple units are suburban EMU trains introduced in the mid-1980s for commuter services around Glasgow, Scotland, featuring steel-bodied construction and 25 kV AC overhead electrification.
  • E. British Rail Class 153
    The British Rail Class 153 is a single-car diesel multiple unit train used on regional and rural passenger services across the UK rail network.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69e0b4f9d5ec8190bb2bd27350ed341c completed April 16, 2026, 10:07 a.m.
NER Named-entity recognition batch_69e6ec60d3288190897a087bbdd4f005 completed April 21, 2026, 3:17 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09277d39c48190b922a763a6ec8a9c completed May 17, 2026, 2:27 a.m.
NEDg Description generation batch_6a0927f18ebc81908e158b47ac171861 completed May 17, 2026, 2:29 a.m.
NED2 Entity disambiguation (via description) batch_6a092852444c8190933e8177a5a0f3e9 completed May 17, 2026, 2:30 a.m.
Created at: April 16, 2026, 12:48 p.m.